DUST COLLECTING DEVICE FOR CYCLONE VACUUM CLEANER PROVIDED WITH DUST-BACKFLOW PREVENTING UNIT

摘要

PURPOSE: A dust collecting device for a cyclone vacuum cleaner is provided to improve dust collecting efficiency by filtering air passing through a dust-backflow preventing unit. CONSTITUTION: A dust collecting device for a cyclone vacuum cleaner is composed of a cyclone chamber(110) having an air inlet(111) and a first air outlet(113) and generating swirl, a dust collecting case detachably coupled to the cyclone chamber, a grill assembly(120) disposed in the cyclone chamber and preventing the backflow of dust, and a filter assembly(130) installed at the outside of the cyclone chamber. The filter assembly includes a filter member(131), a filter frame(133) having second and third air outlets, and a cover unit(135) detachably coupled to the filter frame.